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DI L C N A V H. W

FAUCET FILTER.

(Application filed Mar. 4, 1898.)

(No Model.)

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ritieni llrirmn *ramas ArnNT IVILLIAM Il. VANCE, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF TWO- TIIIRDS TO FRANK XV. IOLFE AND. EDVIN l). VOLFE, OF SAME PLACE.

FAUCET=FILTER.

SPECIFICATION forming part of Letters Patent No, 617,133, dated January 3, 1899.

Application filed March 4, 1898. Serial No. 672,524. (No model.)

To all whom t may concern/.- the casing, and its open lower end forms the Be it known that I, TILLIAM II. VANCE, a discharge of the filter. This pipe has a parcitizen of the United States, residing in the tition or diaphragm c interposed in its length city and county of San Francisco, State of within the casing, and above this diaphragm 55 5 California, haveinvented an Improvement in are holes c and below it holes c2, so that wa- Faucet-Filters; and I hereby declare the folter passing into the upper end of the passage lowing to be a full, clear, and exact descripwill be first delivered outwardly into the castion of the same. ing through the holes o' and then returned My invention relates to a iiltering attachinto the pipe below the diaphragm through 6o xo ment for faucets. the hole c2.

It consists, essentially, of a casing the cap The lter consists of a cylindrical chamber of which is adapted to be secured to the fau- E, the periphery of which is foraminous or cet, a hollow stem extending axially through numerously perforated. The heads of the the casing, having an intermediate partition, chamber are tight and are fitted with stufiing- 65 r 5 openings above and below the partition, so boxes, so as to slide upon the central tube C. that water received into the upper end is dis- The sliding is effected by means of a rod F, charged outwardly into the casing and is repassing through a stuffing-box G upon the turned into the tube and discharged through cap B of the Vcasing and having its inner end the lower openings. A perforated cylinder bent and connected with the` slidable cham- 7o zo is slidably fitted to the tube and carries the ber in any suitable manner. In the present filtering material. l/Vhen this filter is at the case the connection is made by flattening the bottom of the casing chamber, the water bent portion of the rod, so that when turned passes from the outside into the interior and to one side this portion passes under a collar thence to the discharge. Then the casing is or flange of the stuffing-box gland, so that 75 moved to the top, the water passes outwardly when the rod is slidably moved through its through the iilter and returns thence through stuffing-box it will carry the perforated chamthe lower openings to the discharge. l ber with' it. Around this chamber is fixed a Theinvention also comprises details of coniltering material, which may be of any suitstruct'ion, which will be morefully explained able fibrous, porous,` or other filtering char- 8o 3o by reference to the accompanying drawings, acter.

in whichrlhe operation of the apparatus will then be Figure lis a vertical section. Fig. 2 is a as follows: When the sldable chamber is similar view showing the cylinder E in la pushed down within the outer casing, so that raised position. the discharge-openings c2 are within it, the 85 35 1 The object of my invention is to provide an inlet-openings c will be exposed above the easily-operated self-cleaning filter. chamber. The water then being allowed to A is an outer casing, which may be of any enter will pass through the inlet openings suitable or convenient size to suit the charinto the casing exterior to the chamber and acter of the filter. thence will flow through the filtering mate- 9o 4o In the present case I have shown the filter rial to the interior of the chamber and nd of'a size which enables it to be used in direct its exit through the discharge opening c2. connection with a faucet; but it will be mani- Whenever it is desired to cleanse the filter fest that it may be made of any .desired proor for other purposes to reverse the flow, the portions and with any suitable connections. slidable chamber is drawn up until the inlet- 95 45 The cap B of the filter fits closely by screwpassages c will discharge into the interior of threads or otherwise upon the top of the casthis chamber. Vhen in this position, the ing, having a suitable packing-ring to form exit-passages c2 will be exposed below the a tight joint. Through the center of the cap lower end of the slidable chamber and'the opis made an opening, and a pipe O extends eration will then be reversed-that is, the waroo 5o downwardly from said opening, passing ter entering the passages o Will discharge outthrough a stuffing-box D in the lower part of wardly through the filtering mediuin and will consequently wash off any deposit which may have formed upon the exterior of the lter while running in the first position. ing done the flow through the filter will act in the same manner as before, the filtered water being delivered into the exterior casing and thence flowing into the discharge pipe or passage through the opening c2.

In this manner I produce a simple, cheap, and efficient reversible iilter which maybe used either as a faucet-iilter or on the same principle upon a larger scale.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a filter, an exterior casing, a pipe or passage extending through the casing having a diaphragm interposed in its length between the top and bottom of the casing, openings through the sides of the pipe, both above and below the diaphragm,a hollow filter-chamber, the ends of which fit slidably and closely upon the tube, and means for sliding the chamber so that the openings in the tube maybe exposed above or within the chamber, and the openings below correspondingly exposed within or below the chamber.

2. In a filter, an exterior casing, a tube extending through the chamber adapted to receive the supply at the upper end and discharge it exterior to the casing at the lower end, a diaphragm formed in the length of the tube within the casing, openings from the tube into the casin g above and below the diaphragm, a foraminous lter-chamber having closed ends slidable and forming a tight joint upon the central tube and a connection whereby the chamber may be moved so as to expose the openings in the tube to admit water exterior to the chamber and the openings below the tube to convey the water away from the interior of the chamber, or by reversing the position of the chamber, to admit water to the interior of the chamber through the upper openings and discharge it through the lower openings exterior to the chamber.

3. In a filter of the character described, an exterior casing having a hollow tube extending through it with inlet-opening at the top and discharge-opening at the bottom, a diaphragm closing the tube at a point intermediate between the ends of the casing, passages opening from the tube into the casing both above and below the diaphragm, a slidable hollow filter chamber fitting water tight about the tube and a sliding rod passing through the stuffing-box in the outer casing and connecting with the ilter-chambe1',where by the latter may be moved upon the tube to inclose the inlet-passages and expose the outlet-passages below, or to expose the inlet-passages above and inclose the outlet-passages.

In witness whereof I have hereunto set my hand.

WILLIAM H. VANCE. IVitnesses:

S. H. NoURsE, Jnssin C. Bnonrn. 

